Carbureter.



1. H. GOLDEN CARBURETER.

APPLICATION FILED AUG. 7, 1916.

INVENTEIR ATT URN 5x5 CARE 'UIBETEE.

Specification of Letters Eatent.

Application filed August '7, 1916. Serial No. 113,497.

To e22 whom it may concern:

lite it known that 1, JOHN HARVEY GOLDEN, a citizen of the United States, residing at Buffalo, in the county of Erie and State of \.w York, have invented new and useful provements in Carburetors, of which the following is a specification.

This invention relates to a carburetor deig'ned more especially for producing .an xplosive gas from kerosene and other heavy or low grade hydrocarbons for use in internal combustion engines, such as the motors of automobiles.

Its chief object is the provision of a carhureter which produces a practically smokeless and odorless gas from such heavy hydrocarbons, rendering the cost of running a car or engine much less than by the use of gasolene; which insures a constant feed of fuel to the carburetor. and which enables a cold motor to be readily started without the aid of gasolene or other additional explosive gases or mixtures.

Further objects are to so construct the carbureter as to insure an ample supply of air in running at intermediate and high speeds as well as at low speed, and teamprove the device in other respects.

in the accompanying drawings:

Figure 1 is a sectional elevation of a carion-eter embodying the invention. Fig. 2 is a horizontal section thereof on'line 2-2, 1. Fig. 3 is a fragmentary vertical section on line 3 3, Fig. 2. Fig. 4 is a horizontal section on line 44, Fig. 1.

Similar characters of reference indicate irespondin parts in the several figures.

It indicates the howl or fuel chamber of carburetor adapted to contain a suitable ".ntity of kerosene or other appropriate .id hydrocarbon. Fuel is delivered into said chamber from a supply chamber 2 communicating therewith by a passage 3 and having an inlet l. controlled by a needle or float valv 5, for automatically regulating the liquid level in the fuel chamber 1 in the ary manner. A fuel supply pipe 6 (nunicates with the inlet 4. In the eX- ple shown in the drawings, the needle is carried by one arm of a lever 7 hese other arr r is attached to the float 8 ng in the fuel. chamber. v This float of the usual horseshoe form and iy surrounds a mixing tube or chamber l 'ch leads a main or primary air sup .age or conduit 10 and an auxiliary wardly toward and against the face of said air supply passage 11. Leading from said mining tube is a mixture outlet or neck 12 which is connected with vthe motor by the customary manifold, not shown. A port 13 controlled by an automatic valve 14% connects the auxiliary air passage 11 with the primary air passage 10, the weight or resistance of this valve being such that it remains closed in running at starting orlow speeds and opens under the increased suction pro-- duced by the motor at intermediate and high speeds, in a manner common to this class'of carbureters. In the construction shown, this valve is arranged to slide vertically on a guide rod 14* and is properly Weighted to close by gravity, but if desired, it may be provided with a spring forthis purpose.

It is important that the auxiliary valve should open promptly and supply the necessary additional volume of air in running at high and intermediate speeds. To effect this result, suitable means are provided for directing aportion of the incoming air up- 80 valve. The preferred device consists of a deflector or curved lip 15 arranged to extend from the upper front end of the primary air passage 10 to the rear portion 16 of the seat of said valve, the lower portion of the deflector extending forwardly beyond the rear side of the valve, as shown in Fig. 1.

The primary passage 10 communicates with the mixing tube 9 by an ascending pas sage 17 in which is arranged the mouth of an atomizer or fuelnozzle 18 which delivers a spray of kerosene into said tube where. it is mixed with the air entering through the primary or the auxiliary air passage, or both. The lower end of said nozzle opens into the fuel chamber 1 and the supply to the nozzle is regulated by the customary needle valve 19. In the preferred construction shown in the drawings, the lower rear wall 20 of the auxiliary air passage 11 is curved upwardly and extended to or nearly to the mouth of the atoinizing nozzle, as shown in Fig. 1. By this construction the auxiliary air current is deflected upwardly and toward the front-side of the mixing tube 9, preventing it from interfering with or choking hack the primary air current ascending-through the passage 10, when the auxiliary valve 1% is open.

As shown in the drawings, the hody of the carburetor preferably consists of int and rear sections, each cast in one piece; These 21 intersecting the auxiliary air passage ll bethe automatic valve 1% and the mixing 9, and a substantially horizontal oint located the junction of the primary air l0 anal the ascending passage 1?. These parts are secured together at said horizontal joint clamping bolt 28 passing; through the bott in of the front section and spider carried by the section and the are united at said vertical by clam i bolts #2.) passing through peril: tell l1 angcs on the contiguous portions of the front and rear sections.

Located within the lower 0 chamber 1 and subme in the lrerois a suitable device .-.or heating the fuel. This device preferably consists l electric resistance coil 26 of German silver or other approoriate material, having its encls connected with a storage battery or other source of energv. not shown. The circ' in which this heati" coil is inclutlerl is controlled. by a suitable switch which w" on the carburcti-nr is applied to an. automobile, 11111] be conveniently mounted on the dash of the car. in the construction illustrated in the drawings the coil insulated from the bocly or bowl. by l ning the latter with mica or oti insulating material 2?. The cno s of thecoil are attached to upright posts located the bowl at posits sides of the mixing tube 9 and carried at their upper ends by binding posts extending through'the wall or the bowl an suitably insulated. therefrom.

In addition to the heating coil 26, a similar supplemental heating coil 30 is preterably placed in the mixing tube 9 or the outlet neck 12,, or at the. junction of these members, as shown, to vaporize any fuel-atoms not sutliciently broken up to form a groper explosive mixture and to maintain the vaporized Kerosene in a heated. condition, thereby preventing condensation thereof on its way to the motor and preserving its maximum. explosive power. This supplemental coil may be connected with the same source of energy as the heating coil. and. controlled by the same switch. This coil may also be used to advantage in starting the motor without the use of gasolene or other additionalexplosive gas, as hereinafter more fully describecl;

To obtain the best results and effect prompt starting of the motor, it is desirable to heat the body of kerosene in the carburetor-bowl to a comparatively high temperatore, say from 220 to 370 Fahrenheit. Ur- (linar'ily, the foam or bubbles resulting from such heating and boiling elf-the kerosene would rise in the bowl to such a height as toabuormally raise the floatancl cause the ne dle valve to cut the further supply "o lioat nher, thus impairing ortion or the the operation of the motor and stopping it in a comparatively short time.

To overcome this objection, ll submerge in. the body of the kerosene one or more blocks or pieces 31 of a material which has the property of checking or subduing such bubcling of the kerosene sui'liciently to avoiclinterfercnce with the normal action of the float and insure a constant and uniform fuel- :icccl the carburetor and a regular ancl steady action of the motor. A porous, stonelilrc material. which becomes heated more slowly than the lrerosene is suitable for this purpose. l umicc has proved very satisfactory, but any other equivalent substance, such as ll ,-clay, may be enn loyed. Owing" to this differential heating of the kerosene and the pumice blocks the bul) lesprorluced by boiling flow from the heat-mg coil toward the submerged blocks and. rem Ln principally under the surface olthe liquicl;

F aming or bubbling at its s r'tace is thus checked anal kept down, so as not to intcr- All the proper and normal action of the float, as above described. iln the construction shown in the (lrawi s, two such pumice blocks are mounted. on the posts 28 respectively, but they may be otherwise supported. or held in in the fuelbowi.

In the use of the carburetor, the .lreroscne in the bowl 1 is highly heated by cutting; in. the main heating coil 26 alone, with a current of about 25 ampcreso To start the motor, saicl main coil is out out and the sup plemcntal coil 30 cut in. Thisresults in the production of a powerful explosive gas which permits the motor to be promptly started without the preliminary use or" gasoiene, thus simplifying the construction of the carburetor as well as effecting a mate rial saving in fuel.

After the motor has been starterl, the sup plemental coil may be cut out and the main coil again out in at low amperage, say about two amperes. This reduced heating action of the main coil is suflicient, inasmuch as the carburetor after the motor has been started, is highly heated by the incom ing hot air which in turn is heated by the customary stove applicrl to the exhaust manifold of the motor, the carburetor being also hosted by the incoming kerosene which is heated by passing through the usual worm or coil. applied to said manifold.

Summarizing the advantages of this carburetor, it permits the use of kerosene insteaclof the more expensive gasolene; the exhaust gases are smokeless and have no oflensive odor; a cold motor can be started in a relatively short time without the aid or preliminary use of g'asoleue or other explosive gas; very little carbon is deposited in the cylinders, requiring them to be cleaned less frequently, and the explosive fare wi t 1 on ilcim mixture is more powerful than that produced by" gasolene, obtaining correspondingly greater mileage.

I claim my invention:

1. In a carbureter, a float chamber adapted to contain liquid hydrocarbon fuel, means than the liquid fuel in Which it is submerged.

3. In a carburetor, a float chamber adapted to contain liquid hydrocarbon fuel, means for heating the contents of said chamber, and a porous body in said chamber having the property of becoming heated less rapidly than the liquid fuel in Which it is im mersed and operating to subdue the bubbles produced by the boiling of said liquid.

4. In a carbureter, a float chamber adapted to contain liquid hydrocarbon fuel, means for heating the contents of said chamber, and a block of pumice stone arranged in said chamber and adapted to be immersed in its contents.

5. In a carbureter, a chamber for liquid hydrocarbon fuel, means for heating the contents of said chamber, a valve for regulating the feed of the fuel to said chamber, a float in said chamber controlling said valve, and means in said chamber for sub-.

duing the bubbles created by the boiling of said liquid fuel.

6. A carbureter, comprising a float cham ber adapted to contain liquid hydrocarbon fuel, an electric coil arranged within said chamber for heating its contents, and a substance in said chamber having the property of subduing the bubbles produced by the boiling of said fuel. I

7. A carburetor, comprising a float chamber adapted to contain liquid hydrocarbon fuel, posts arranged in said chamber and forming electric terminals, an electric heating coil arranged in said chamber and connected with said posts, and porous blocks mounted on said posts and having the prop -erty of subduing the bubbles produced by the heating of said fuel.

8. A carbureter, comprising a float cham-' ber adapted to contain hydrocarbon fuel, an electric coil arranged in said chamber for heating its contents, and a bloclg of pumice-stone arranged in said chamber and adapted to be immersed in its contents. 1

JOHN HARVEY GOLDEN. 

